RSSM #2.1 - Fundamentals

If your phone has a bit depth of 8 (so it uses 1 byte to save each value), what is the maximum digital number - the saturation value?

Where do you get a higher spatial resolution?

• Nadir

• Look angle of 30 deg

A satellite with a give field-of-view. At what altitude do you have a wider swath?

• 500 km

• 700 km

A satellite with a give field-of-view. At what altitude do you have a higher spatial resolution?

• 500 km

• 700 km

Sentinel-3 flies in a SSO 14+7/27. How many days until the ground track goes over itself?

Sentinel-3 flies in a SSO 14+7/27. How many revolutions until the ground track goes over itself?

Scientists need to take three images of the same area for interferometry.

They need this images with a maximum temporal spacing of three days (so 1 image every 3 days). What repeat cycle would you choose for your SSO?

What's the nodal period - time it takes for one revolution - (aprox.) of an SSO?

• 90 min

• 12 hrs

• 1 day

What's the nodal period - time it takes for one revolution - (aprox.) of an GNSS, e.g. Galileo?

• An hour

• Half a day

• A day